DMA’s Third/Power Rail Measurement System (TRMS) provides precise measurement of power rails for safer operation and reduced risk of equipment damage. The TRMS can be configured for third or fourth rail applications.

  • Optical, non-contact technology
  • No moving parts or mechanical transducers
  • Fast and accurate measurements
  • Compact dimensions for easy installation
  • Unmanned operation for safety and efficiency
  • Multiple configuration options available
  • Extreme cold or hot temperature options

Suitable for

Mainline rail with power rails
Metro Systems with power rails

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Example of TRMS output

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TRMS installation